Question about 2006 Ford Taurus

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I have a fuel pressure tester but I don't know how to check it on a 2006 Taurus with the 3.0 12v motor. I think the fuel pump is bad because sometimes the car does not start. I am unable to tell if the pump is running when I turn the key.

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Located on the fuel rail ( silver or chrome lines holding fuel injectors) you will find a cap at one end that looks like a valve stem cover. When you remove the cover you will find a connector which resembles a tire valve stem. You will connect the fuel pressure tester to this port, and you will need a second person to help. Once connected you will want the helper to turn the key to the on position while watching the gauge. You should see a small pressure rise when the key is cycled from off to on several times. Then with the tester still attached have you helper start the car. You should see a increased pressure around 40PSI. You should check with ford for the proper fuel rail pressure. The gauge should only move about 5 pounds or so while idling.
If you do not have fuel pressure I would first suggest checking the fuel pump relay and it contacts to make sure the relay is working properly. If the relay is working and you still have little pressure the I would change the fuel filter. After that if you still have low pressure I would suggest replacing the pump.

Posted on Aug 04, 2010


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